A kernel simple module that enables you to call ACPI methods by writing themethod name followed by arguments to
/proc/acpi/call .
This module is to be considered a proof-of-concept and has been superseeded byprojects like bbswitch. Itallows you to tamper with your system and should be used with caution.
Card4Call 1.1 – a simple application that lets you easily create your own business cards. May 24, 2014 Card4Call is a simple application that lets you easily create your own business cards (size 8.5 x 5.5 cm). Features: – choose from 2360 icons and 140 textures.
Want to use acpi_call via graphic interface? Click here
Usage:
You can then retrieve the result of the call by checking your dmesg or:
An example to turn off discrete graphics card in a dual graphics environment(like NVIDIA Optimus):
These work on my ASUS K52J notebook, but may not work for you. For a list ofmethods to try, see http://linux-hybrid-graphics.blogspot.com/ or try runningthe provided script
examples/turn_off_gpu.sh
It SHOULD be ok to test all of the methods, until you see a drop in batterydrain rate (
grep rate /proc/acpi/battery/BAT0/state ), however it comeswith NO WARRANTY - it may hang your computer/laptop, fail to work, etc.
You can pass parameters to
acpi_call by writing them after the method,separated by single space. Currently, you can pass the following parametertypes:
The status after a call can be read back from
/proc/acpi/call :
Graphic interface
Found this too difficult? Try to use these programs provided by Marco Dalla Libera and do it via graphic interface:
Copyright (c) 2010: Michal Kottman
This program is free software: you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation, either version 3 of the License, or(at your option) any later version.
This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.
WhatsCall is an app to make free phone calls using only your Internet connection. And not only can you call other users of this app – you can call any of your contacts right to their actual phone numbers. Though for that you'll need credit on your account.One of the strengths of WhatsCall over other apps like it is that you can earn up to 2,000 credits in a single day – enough to pay for a 30-minute phone call. To get credits you can view announcements, install apps, or even play roulette. Though you can obviously also use real money.It's important to keep in mind that to create a WhatsCall user account you do need your own phone number. You don't actually need to use the device associated with the number (meaning you can make calls from a tablet, for instance), but you will need to verify the phone number to get set up.The nice thing about WhatsCall is that you can make free phone calls without relying on any other service like LINE, WhatsApp, or Skype.
With all these apps the other people also have to have the app installed, but with WhatsCall you can ring straight through to their phone line.
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